| Brand | AR RF / Microwave Instrumentation |
|---|---|
| Frequency coverage | 26 MHz to 12 GHz |
| Antenna type | Log-periodic |
| Power handling | Very high RF power handling |
| Performance | High gain, low VSWR |
AT Series Log Periodic Antennas
AR RF / Microwave Instrumentation
The AR RF/Microwave AT Series Log Periodic Antennas is a broadband antenna series designed to facilitate high-field EMC and radiated immunity testing. These rugged antennas handle extreme power levels up to 20 kW maximum input for reliable field generation. Their versatility makes them ideal for demanding automotive, aerospace, and defense applications.
Key Specifications & Features
- Frequency Range: 26 MHz to 12 GHz (model dependent)
- Power Handling: Up to 20 kW maximum input power (ATR26M1G)
- Design Types: Log-periodic, Radiant Arrow, and Trapezoidal configurations
- Stability: High gain with stable radiation patterns across the spectrum
- Efficiency: Low VSWR for optimized power delivery
- Construction: Rugged, modular design for long-term durability
- Polarization: Includes vertical to horizontal pivot on select models
- Applications: Ideal for radiated immunity and emissions testing
| ATR26M1G | 26 MHz – 1 GHz, 20 kW input power, Radiant Arrow/Log-Periodic Antenna (includes vertical to horizontal pivot) |
| ATR26M6G | 26 MHz – 6 GHz, 5000 W input power, Radiant Arrow/Log-Periodic Antenna, 2.81 meter overall width (includes vertical to horizontal pivot) |
| ATT700M8G | 700 MHz – 7.5 GHz, up to 1200 W, Trapezoidal Log Periodic Antenna |
AT Series Log Periodic Antennas
The AT Series from AR RF/Microwave (AMETEK) consists of high-performance broadband log-periodic antennas specifically engineered for high-field EMC and radiated immunity testing. These antennas are designed to handle extreme RF power levels, enabling the generation of the intense electromagnetic fields required by modern automotive, aerospace, defense, and industrial standards. By covering wide frequency bands in a single unit, they streamline testing processes and ensure compliance with rigorous global EMC standards. Built with a focus on durability and precision, these antennas feature a rugged, modular construction that maintains a stable radiation pattern and high gain across the entire operating spectrum. The log-periodic and Radiant Arrow designs are optimized for low VSWR, ensuring maximum power efficiency when paired with high-power RF amplifiers. Whether used for emissions monitoring or susceptibility testing, the AT Series provides the reliability and consistency needed for critical laboratory environments. The series includes specialized models such as the ATR26M1G Radiant Arrow, which supports up to 20 kW of input power, and the ATR26M6G which covers up to 6 GHz with a 2.81-meter width. For higher frequency requirements, the ATT700M8G trapezoidal log-periodic antenna operates from 700 MHz to 7.5 GHz with power handling up to 1200 W. Many models come equipped with a vertical to horizontal pivot mechanism to facilitate rapid polarization changes during testing, ensuring full compatibility with high-power AR amplifiers.Extreme Power Handling
Supports input power levels up to 20 kW for the most demanding radiated immunity tests.
Broadband Frequency Range
Covers wide frequency bands from 26 MHz up to 12 GHz to meet diverse EMC standards.
Rugged Modular Construction
Built with durable materials and a modular architecture for long-term reliability in lab environments.
Integrated Polarization Pivot
Select models include a vertical to horizontal pivot for fast and easy polarization adjustments.
High-Power RF Performance
The AT Series is distinguished by its ability to manage some of the highest RF power levels in the industry, with specific models like the ATR26M1G handling up to 20 kW. This capability is essential for generating the high-intensity fields necessary for rigorous radiated immunity testing in the automotive and defense sectors.
Specialized Design and Mounting
These antennas utilize innovative Radiant Arrow and Trapezoidal architectures to maintain high gain and low VSWR across wide bandwidths. Integrated features such as the vertical to horizontal pivot on the ATR26M1G and ATR26M6G allow for seamless polarization transitions during testing, ensuring efficient laboratory workflows.
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